Phy, C., K. Dejbhimon, D. Tulaphitak, P. Lawongsa, N. Thammasom, and P. Saenjan. “Rice straw amendment and sulfateAffecting methane production and chemical properties in paddy soils”. Asia-Pacific Journal of Science and Technology, vol. 19, no. 2, Apr. 2017, pp. 193-00, https://so01.tci-thaijo.org/index.php/APST/article/view/82929.